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microbiology > chlamydia, pajaroellobacter, and moraxella > Flashcards

chlamydia, pajaroellobacter, and moraxella Flashcards

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Biology 101 flashcards
1
Q

what would not be a differential for small acne die-off of birds

A

leptospira interrogans

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2
Q

what agents are potentially zoonotic causes of abortion in humans?

A

brucella melitensis
coxiella burnetii
borellia burgdorferi
chlamydophila bouts
leptospira interrogans

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3
Q

what is the best samples to collect when there is a small scale bird die-off

A

conjunctival swab
cloacal swab

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4
Q

what are the test results if positive for a small scale bird die off?

A

chlamoydophila PCR+

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5
Q

is chlamydiaceae zoonotic?

A

yes

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6
Q

what is the infectious form of chlamydiaceae

A

elementary bodies

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7
Q

what is the intracellular form of chlamydiaceae?

A

reticulate bodies

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8
Q

what are the clinical presentations caused by chlamydiaceae?

A

psittacosis
repro losses
conjunctivitis

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9
Q

what are agents that cause abortions in sheep and are also zoonotic

A
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10
Q

if there is an abortion in sheep what samples do you want to collect?

A

aborted fetuses + placenta
blood from dam

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11
Q

what are tests you should run when there are abortions in sheep?

A

chlamoydophila FA/PCR

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12
Q

what other species are susceptible when there is abortions occurring in sheep?

A

humans

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13
Q

what causes cystitis and conjunctivitis in koalas and ruminants?

A

chlamoydophila pecorum
KIDS (koala immunodeficiency syndrome)- koala retrovirus similar to HIV

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14
Q

what chlamoydophila spp effects avians and humans? what target organs do they affect?

A

C. psittici
respiratory, GI, eyes

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15
Q

what chlamoydophila spp effects ruminants and humans? what target organs do they affect?

A

C. abortus
reproductive

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16
Q

what chlamoydophila spp affects cats? what target organs do they affect?

A

C. felis
eyes

17
Q

what chlamoydophila spp affects guinea pigs? and what target organs do they affect?

A

C. caviae
eyes

18
Q

what chlamoydophila spp affect ruminants and koalas? what target organs do they affect?

A

C. pecorum
ruminants- joints, eyes, CNS
koalas- eyes, reproductive

19
Q

what is the pathogenesis of chlamydiaceae and how is it transmitted?

A
20
Q

how do you diagnose chlamydiaceae?

A

collect fetal, placental tissues, conjunctival swabs to sample
-PCR

21
Q

treatment for chlamydiaceae

A

tetracyclines
vaccination
isolation
removal of infectious materials

22
Q

what is the life cycle of the typical chlamydial agent?

A

aerosol or fecal-oral trasmission
-environmental, infectious form
replication in mucous membranes or resp epithelium
-intracellular form

23
Q

how do chlamydial infections induce disease, alone and in tandem with other agents?

A
24
Q

what is the agent that causes foothills abortion in first-calf heifers

A

pajaroellobacter abortibovis

25
Q

how is pajaroellobacter transmitted?

A

ornithodoros coriaceus (tick)

26
Q

how do you diagnose pajaroellobacter abortibovis

A

PCR
IHC (aborted fetal tissues)

27
Q

how do you prevent pajaroellobacter abortobovis

A

recently approved vaccination using live strains/attentuated 60 days prior to breeding

28
Q

what are the differential diagnosis for bovine conjuntivits

A
29
Q

what samples should you collect for bovine conjunctivitis?

A

conjunctival swabs

30
Q

what tests should you run for bovine conjuntivitis?

A

culture
IBR FA

31
Q

what is the pathogenesis and transmission of bovine conjunctivitis

A

direct contact
stressful events

32
Q

what are the prevention and treatment methods for bovine conjunctivitis

A

quarantine
isolation
management
tetracycline
anti-inflammatories
vaccination available

33
Q

what common infections are seen with moraxella and what other agents may contribute to clinical presentations?

A

conjunctivitis, often in concert with infectious bovine rhinotracheitis (IBR)

34
Q

what predisposing factors contribute to clinical disease for morazella?

A

-stress
-seasonality and emergency of biological vectors
-intro of new animals which may be silent carriers

35
Q

how are moraxella infections commonly diagnosed?

A

clinical appearance along with culture of conjunctival swab

36
Q

how are moraxella infections typically prevented and treated?

A

quarantine new animals
isolation of infected
management of insect vectors
antibiotics- tetracyclines; anti-inf

37
Q

a koala from the zoo presents with lesions, what is the best approach for diagnosing the disease?

A

PCR for chlamoydophila

38
Q

what tick is considered a vector for the agent causing foothill abortion in cattle?

A

ornithodoros coriaceus

39
Q

what is least likely associated with and outbreak of bovine conjunctivitis?

A

a closed herd receiving their yearly vaccines

microbiology (12 decks)

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